The cleanup for part of an East Chicago, Indiana toxic waste site will cost nearly four times more than originally expected. The U.S. Environmental Protection Agency, which oversees the site’s cleanup, will open an opportunity for public comments Monday, Dec. 18.

The EPA initially estimated cleanup for the residential area of the USS Lead Superfund site would cost $23 million. But, a new agency report says the estimate should be closer to $85 million.

More than 30 East Chicago homeowners last week sued several companies the federal government holds responsible for toxic industrial contamination.

Those companies include DuPont, Atlantic Richfield, British Petroleum, U.S.S. Lead and Mueller Industries.

The lawsuit alleges those companies caused property loss to residents who live in a lead-contaminated Superfund site and that, “[f]or decades, Defendants’ lead smelting, lead refining, and other manufacturing processes wreaked environmental havoc in the Calumet neighborhood of East Chicago.”